Energy-saving thermal insulation wallboard for building

The invention relates to an energy-saving thermal insulation wallboard for a building, and relates to the field of thermal insulation wallboards. The device comprises a mounting frame arranged on a wall body, the mounting frame is hinged to the wall body, a first buckle plate is arranged on the wall body, a first sliding seat is arranged on the mounting frame in a sliding mode, a second buckle plate is arranged on the first sliding seat, a control assembly used for controlling the first sliding seat to move is arranged on the mounting frame, a wall plate is arranged on the mounting frame, and a hanging ring is arranged on the wall plate. A hook is arranged on the installation frame, the hanging ring is arranged on the hook in a sleeving mode, and a limiting assembly used for limiting the hanging ring to be disengaged from the hook is arranged on the installation frame. The problem that a traditional thermal insulation wallboard affects a constructor to troubleshoot and repair the damaged position of a wall is